Closet flush-valve.



No. 837,077. PATENTBD Nov.I 27, 1906.'

H. KUPSCH.

GLOSET PLUSH VALVE.

APPLICATION FILED'MAY 11, 1903. RENEWED MAY. 5, 190?.

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H.KUPS0H.

GLOSET FLUSH VALVE.

APPLIoATIoN FILED MAY 11, 190s. RENEWBD MAY 5, 19'06.

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JOHNSON; 0F CHICAGO, iLLlNGS.

CLSET FLUSHNVALVE.

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Specification of Letters Intent.

Patented Nov. 27, 1906.

Application led May 11, 1903. Renewed May 5, 1906. Serial No. 315,305.

To all whom it may concern.-

Be it known that I, HERMANN Kursen, e citizen of the United States,residing et Chicago, in the county of Cook und Sta-te oi" lilinois, haveinvented certain new und useful Im rovements in Closet Flush-Valves undl do i ereby declare the following to be e full, clear, and exactdescription of the invention, such es will enable others skilled in theert to which it epperteins to Ineke and use the seme.

This invention relates to e novel construction in e closet iiush-valve,the object being to provide e valve which connects directly with theWetenservice end will feed e measured uentity et water at each operationwithout t 1e intermediecy of e tank; and it consists in the features ofconstruction and combinetions oi ports hereinafter fully described andclaimed.

in the accompanying drawings, illustre-ting my invention, Figure l ise/centrel longitudinel section of e valve constructed in uccordonce withmy invention. Fig. 2 is o similar section showin the operuiing parts inanother position. vig; 3 is e sectional view on the line 3 3 of Fig. 2,showing the tube end velve-ectuuting devices mounted therein to bringthe latter to e convenient, point to be operated.

My seid device consists of o practically cylindrical csi-sing 1,provided with un exten nelly-threaded nipple 2, by menus of which it .isconnected with the water-service pipe, endprovided et its lower end withu union 3, by means oi which it is connected with the closet-bowl orother device' to he ilushcd or fed. inmediately below the witter-inletthe said casing is internally ennuhirly reduced, as at 4, seid reducedportion being provided at its upper end with an upwardly-projcctingannuler shoulder 5, forming e valve-sen t upon which the piston-vulve Gsects. The seid valve 6 consists of o truuk-piston provided et its lowerond with a reduced exten- Sion 7, snugly iitting within the reducedportion 4 of' said easing, while above suid extension 7 en annulershoulder 8 is formed, which receives a rubber or other llcxible washerEl, which seats on seid vulve-sent 5. 'lhc suid valve (i is hollow utits cuds nud is provided lbetween its ends with e partition-well 1t),

hevinfr e diinnetricnl nsszwc 11 bored therethrough, which communicateswith e central threaded recess 12 in the upper face of seidpartition-wall 10. Said recess 12 receives e screw 13, which acts as evalve to control seid pessege 11, and is provided with e central opening14, throng i which communication is established between said passage 11end the chamber ebove the seid valve 6 At opposite ends o'l said passage11 seid velve 6 is provided with longitudinal grooves 15 end l, seidgroove 15 being short und extending from the shoulder S to a. pointslightly above the vmouth of the passage 11, while seid groove 1Sextends trom seid shoulder 8 to a point ndjeeifnt the upper end of saidvalve 6.

The sind vuivc 6 lits snugly within seid casing i above the water-inlet,end its upward movement is limited by the lower end of :i oep 17,extending into seid casing 1 at its upper end, sai-id cup forming encir-cheniber in the seid upper end of scid casing. Below the-lower endof scid cap 17 seid casing is unnularly enlarged, :is et 18, so thatsaid piston when nt the upper lunit of its movement extends into suidenlarged portion 18 a sullicient distance to (reuse communication to beestablished between the waiter-inlet and seid choiuber 18 through thelongitudinal groove 16. (Rnuinunicnting with sind 'chainber 1S is :iradial nipple 19, having en annulnr tupered shoulder 2O et its innerend, which loruis u vulve-sent. The Suid nipple inieruully threaded etits outer end to rcceivc n` sleeve 21, which is provided at its inucrend with :in nunuhirly-rcduced portion 22, seating on scid vnlvdseut 20.The seid reduced portion 22 provided with u eentrul passage 22%, whichcommunicates, by menus ol' rodiul rmssngcs 2li, with the :innulurcluuuhcr 25 between suid reduced portion 22% und the inner woll ol' thenipple 19, which in turn coiuuluui'cutcs with the interior ol' thecasing l below the vulve-sect 5 by moons ol` [he duct 22o, formed in thcwoll of smid casing. 'lhe scid passage 24 is C011- trollcd by :i vulve37, the stein of which posses into seid slccve 21 oud carries onndjustublc colhir 2S :it its rezu end, between which nud the inner cudwoll 2S) ofsuid sleeve :i spiral spring il() is interposed, whichuormollyv holils suid vulve 27 closed. The scid cup 17 is hollow undforms en nir-cheniher ubove thc chumbcr 18, which serves to the extremeupper limit of its movement.

.and partly by the flow o water into the cushion the force of the wateras the valve 6 shuts oif the ow, thus absolutely preventing the poundingusually attendant upon shutting oif the flow of water when the pressureis high. In the lower end of said cap are notches which permit theescape of water from the chamber 18 when the valve 6 is atv As the saidcasing is generally so located relatively to the closet-seat as to bevery inconvenient of access, I- have found it advisable to provide meansconvenient to the person to operate the valve, and to this and I securea curved tube 31 in the outer end of said sleeve 21, in whichaclosely-coilei spring 32 is mounted, which bears against the outer faceof the collar 28 at one end and at its other end against the inner endof the shank 33 of a button 34, movable longitudinally in a cap 35 atthe free end of said tube 31, said sprmg forming a iiexible shaft bymeans of which pressure on said button 34 is communicated to the valve27 to open the latter against the action of said spring 30.

The operation of my device is as follows: In the position shown in Fig.1, in which the valve 6 is closed, the pressure in the chamber 18 isequal to the ressure in the service-pipe by reason of the act that thesaid chamber 18 communicates with the service-pipe through the passages11 and 14. AThe service-pressure acts upon the piston 6 at itsl lowerend only upon the free portion of the shoulder 8, while it acts upon theentire cross-sectional area of said piston at its upper end, suchdifferential areas obviously serving to hold said valve firmly on itsscat. By opening the valve 27 the pressure on the upper end of thepiston` is immediately released, the water contained in the chamber 18passing out through the passages 23, 24, 25, and 26, and such release ofpressure causes the valve 6 to be raised to the upper limit of itsmovement, thereby causing the service-pipe to be directly connected withthe closet-bowl. Se long as the valve 27 remains open the valve 6 willvremain at the upper limit of its movement; but as soon as said valve 27is closed said valve 6 will begin its downward movement, artly bygravity chamber y18 through. the passage 11 and groove 16, the rapidityof its downward movement being determined by the rapidity with which thechaiuher 18 can be refilled with water,

It will be noted that whenv the valve 6 is at the upper limit of itsmovement, shown in Fig. 2, the chamber 18 communicates with theservice-pipe not only through the passages l1 and 141, but also throughthe groove l 16. Hence until the upperendof said groove i 16 passesbelow the shoulder at the lower end of chamber 18 the flow of water intothe latl ter will be rapid and cause said valve 6 to l move rapidlydownward. After said groove 16 has passed below said shoulder, however,the movement of the valve 6 will be very gradual, the rapidity ofA suchmovement being determined by the adjustment of the screw 13, whichregulates the iiew of water through the passage 11. Then the lower endof the extension 7 of said valve 6 has passed the valve-seat 5, theiushing flow of water will cease. As such liow is very rapid, itfrequently happens that the trap of the closet is siphoned out, and toavoid its remaining empty I provide perforations 36 in said extensions 7through which a sulicient after-flow of water is assured to fill thetrap and provide sullicient water in the closetbowl to render samesanitary. After said perforations 36 have passed the valve-seat 5 theafter-flow ceases and valve 6 becomes firmly seated by reason of theequalization of pressures in the service-pipe and chamber 18,

which, by reason of the dill'erential areas acted upon thereby, asbefore stated, causes the valve 6 to be securely held on its seat.

In F ig. 1 I have shown the valve 6 on its seat and .the vlave 27 open,which would cause the valve 6 -to be instantaneously raised, while inFig. 2 I have shown the valve 6 atlthe upper limit of its movement andthe valve 27 closed.

My device is exceedingly simple and ellicient and very easily operated.

' I claim as my invention- 1. In a closet 'flush-valve, the combinationwith a trunk-piston valve in the body thereof, a valve-seat of smallerdiameter than said valve, a guide-passage in which said valve moves, anda fluid-pressure chamber above said gui .le-passage of larger diameterthan the latter., of a water-inlet above said valveseat, a passagethrough said valve connecting said water-inlet with said Huid-pressurechamber, an auxiliary valve controlling the pressure in saidfluid-pressure chamber', and an auxiliary passage in said valveterminating between the ends of the latter and controlled by themovements thereof,'said auxiliary passage heilig adapted to restablishsecondary communication with said fluid-'pressure chamber when said`valve approaches the upper limit of its movement to accelerate theinitial downward stroke of the latter,said auxiliary passage beingclosed before said valve reaches the lower limit of its movement tocheek the closing movement thereof.

IOO

IOS

2. In a closet 'flush-valve havin a iluidpressure-actuated piston-valve,an( a cylindrieal guide-chamlmr in which said valve is movable, afluid-pressure chamber above said valve ol larger diameter than thelatter, an auxiliary valve controlling said chamber, said valve havingpassagesconnecting seid {luid-pressure chamber with the water-inlet,

one of said passages being in the body of said valve and the otherthereof on its periphery,

ISG

said lasl'faemed essage extending `from the fluid-pressure chamber toaccelerate the inlower end of sei valve to a point midway tial closingmovement of seid valve. :o between the ends thereof and being closed atIn testimony whereof I affix my signature its upper end by the wall ofseid guide-pesin jresenee of two witnesses.

sage when seid valve is et or neer the lowe` llJRlWliNlv KUPSCH. limitof its movement, -and adapted, when Witnesses: seidw'elve is at theupper limit of its move- RUDOLPH WM. LOTZ,

'ment to increase the flow of Water inte seid E. F; WILSON.

